Keysight 34420A Nanovolt/Micro-Ohm Meter

Overview

The Keysight 34420A is a 7.5-digit nanovolt/micro-ohm meter optimized for high-sensitivity, low-level measurements. It combines low-noise voltage measurement capabilities with resistance and temperature functions, offering 100 pikovolt and 100 nano-ohm sensitivity for precision laboratory and manufacturing applications.

Key Features

• High-sensitivity DCV and resistance measurements at 100 pikovolt and 100 nano-ohm
• Accurate temperature measurements with 0.003°C accuracy using standard platinum resistance thermometer (SPRT) probes
• Built-in low-noise 2-channel scanner for simplified voltage comparisons
• Three resistance measurement modes: standard, low-power, and voltage-limited for dry-circuit testing
• 7.5-digit resolution with 0.003% basic 1-year DCV accuracy
• Offset compensation to minimize thermal EMFs and associated errors

Measurement Functions

• 2-wire and 4-wire resistance
• Temperature (with SPRT probes)
• DC voltage (DCV)

Applications

• Low-level voltage and resistance testing
• Precision temperature measurements
• Research and laboratory work
• Manufacturing quality assurance

Included Accessories

• Low thermal input cable (34102A)
• Low thermal shorting plug (34103A)
• Kelvin clip set (11062A)
• Calibration certificate
• Power cord